单项选择题

In Sections A, B and C you will hear everything once only. Listen carefully and then answer the questions that follow.
SECTION A TALK
Questions 1 to 5 refer to the talk in this section. At the end of the talk you will be given 15 seconds to answer each of the following five questions. Now listen to the talk.
The main theme of the talk is about（）

A．noise-control technology.
B．noise in factories.
C．noise-control regulations.
D．noise-related effects.

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单项选择题

A．office hierarchies
B．office conditions
C．office rules.
D．office life.

填空题

5（）